If you want remote trading, open up an account with Datek. It's a lot cheaper than going through a prop firm. Remote trading with a prop firm is almost the same as being a prop trader. The disadvantage is that you still have to put up a large deposit and you get zero training. Datek has access to Level 2 quotes anyway.

The right questions are how much capital do I put up? How much does the firm have? What percentage is the traders and what is the owners? What are the owners long-term obligations versus their capital. What are their lease obligations or contracts that will erode their capital over time if the firm breaks even? What are the risk procedures for the firm? Then ask about rates...